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And can any random person with a gmail or outlook or yahoo email address successfully email you and get replies back?

• yjftsjthsd-h 5y ago
  Having your own domain doesn't mean running the email server yourself. Or are you suggesting that they filter by registrar?
• jeroenhd 5y ago
  In my experience, the moment someone emails your domain (at least on Gmail) your domain seems to become whitelisted almost instantaneously, even if others receive your email as spam. I don't know about Yahoo, but the problem is usually reaching out first. Generally, deliverability seems quite fine as long as you don't go for the cheapest package deal and implement all the modern protocols (SPF, DKIM, DMARC, etc.). Amazon IP addresses also seem to do quite well because Amazon has its own spam prevention system that's tied to your AWS account. Having said that said, I haven't had a failed delivery in years and I host my email on a cheap VPS. I only started getting deliverability problems when I ignored my mail client's (and server's) warnings before sending a 100MiB email through a mail server that also hosted a TOR relay, which was pretty stupid in hindsight. Mail deliverability isn't quite as bad as people seem to think it is, but if mail delivery to the big four fails, there's almost never a way to troubleshoot it. That's kind of a pain, I suppose.